Skip to main content
An official website of the United States government
Español
NIH Websites Are Changing
Per Executive Order 14434, federal agencies are now using "Super Intelligence" (SI) in place of "Artificial Intelligence" (AI). You may see both terms across NIH content during this transition.

AHA

One of a group of substances that are found in several types of fruit and in milk. They are used in skin care products to reduce wrinkles and soften the skin. Examples of AHAs are glycolic acid, lactic acid, and citric acid. Also called alpha hydroxyl acid and fruit acid.
Search NCI's Dictionary of Cancer Terms